Exclusive: Paying for frontier AI models buys 4-month head start at 5x the cost
The performance gap between frontier AI models from US tech companies and the best open-weights models from Chinese companies has closed to just 4.4 months, according to a Mozilla report. That explains why many companies are shifting to the significantly cheaper open models for routine work—and helps reveal a narrow band of workloads where frontier models are worth the cost. Most organizations should ideally be using open models as the default for the majority of their work, according to the lat
Open-source AI models from Chinese companies have closed the performance gap with expensive proprietary frontier models from US tech companies to just 4.4 months, while costing about one-fifth as much. This matters because many organizations can now use cheaper open models for routine work, reserving expensive closed models only for specialized tasks that would normally require human experts. The key insight is that closed frontier models provide value primarily for tasks lasting between 8 and 12 hours, where they maintain a meaningful capability advantage, but this lead shrinks every four months as open models improve. However, open models remain concentrated in Chinese hands while closed frontier models are dominated by US companies, raising concerns about which country may set global defaults for AI technology.
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